which \(M\)  is the “total mass-energy" [1]} . Referring to quantum electrodynamics,
due to vacuum polarization, bare mass and bare charge of electrons are not measurable. Hence,
for general relativity, the rest-mass energy \(m\)  in the flat spacetime behaves like bare mass, and the
total mass-energy \(M\)  in the curved spacetime behaves like the experimentally observable mass. The
total mass-energy \(M\)  can be regarded as a modified \(m\) . Second, the difference of energy
between the Einstein and Møller prescriptions [2]} is defined as
\(\Delta E = E_{\rm E} - E_{\rm M} ,\) 
